Woodworking machine



Patented July 13,1926 H I i '7 I, 2 UNITED "STATES PATENT; OFFICEQ.

JOHN C. sru'rz, or ALBUQUERQUE, NEW MEXICO.

L woonwonxme ivraonrnn' Application filed November 13, 924. Serial No. 749,677.

This inventionrelates to new and useful each end of the shaft, by the set screws 16, improvements in woodworking 'machines, is a sleeve 17. The outerend of each sleeve and particularly to cut-off and coping mais formed with a threaded socket 18, in whichchines. I is received the threaded stem of the nut 19, 60 5 ()nc object of the invention is to provide said stem also passing through the central a machine of this character by means of opening 20 of the saw blade 21, said blade which the ends of mullion and muntin strips, being of the circular type. The Hut has a of sash or door constructions, may be cut head 22 which is frictionally engaged against a and coped, in one operation, to produce the outer face. of the saw'blade, to hold the 6 10 the proper interlocking joints therebetween. blade in proper position. On the shaft 15,

Another object is to provide a machine inwardly of one of the, saw blades 21, is of this character which is readily convertible a belt'wheel 23, driven by the belt 24:, from into a two spindle shaper or a copingdevic'e. the motor which is mounted on the brack- Anotherobject is to provide a machine et-25, supported on thetable beneath the of this character wherein the bar stock may top 11. Supported in suitable brackets 26, n be 011$ 01% dc p i 0116. opera i n, at at opposite sides of the table, andbetween 11: the desired angles, whereby to provide for the sideplates 10, are the vertical rotary the proper fitting ofthe mullionand muntin spindles 27, and on theupp'er'cnds of the SilllPS- t0 PlOQl'LlCQ the desired outline OI spindles are ren' gvably ecured the coping 20 fr m Of 16 glass p d C1001 Window cutters 28, or shaper knivesorsaws, the latsash. v ter not being shown, but which will be well Another object is to provide a machine of derstood, I this character which includes meansfor out- In the upper edge of each of the side ting offthe endof the bar stock to the de plates 10, there is formed 'a longitudinally 25 sired angle, before passing the stock to'thcextending V-shaped groove 29, andextend coping cutters, thus permitting the strip or ing longitudinally in the outer face of each bar Stock to be coped 1 he P P g side plate 10, is a longitudinal rectangular o e Objects and advantages l be P- groove 30, said latter groove being in parallel parent from the following description when l ti t th table to and at a suitable dis- 30 taken in connection with the accompanying ta from the top thereof, An angle plate 1 drawings. 31 is disposed with its horizontal wing rest- In the drawings ing on the upper faceof the si'deimember. Figure l'is a side elevation of one end of 10 nd on th lower face of this wing there a machine inadein accordance with the presis formed a longitudinal V -shaped rib 32, 0 cut invention. i 7 said rib fitting into the V-shaped groove 29, Figure 2 is an end View of the machine. wher by th said plate is capable of easy, Figure 3 is a top'plan View of the p rt on sliding movement longitudinally of the tashown inFigure 1. I r ble. Mounted inthe lower portion ofthe Figure 1 is an enlarged sectional detail depending wing of the plate 31is a roller "40 1 view through one of the saws 21, showing 33, which is dispos'edfor rolling movementthe inanner in which the saw is mounted on longitudinally iinythe angular groove 30. the shaft. v Disposed vertically for adwst-ment toward Referring particularly to the accompanyand away from the upper face of the angle ing drawings, 10 represents a pair of side plate 31, is a horizontal plate 34, said plate 1 has plates to which is secured the horizontal having 3, de ending l g 35, whi h i o plate 11, forming the table top of the maable upwardly and down m b the y chine, said plate having the downwardly screw 36, carried by the vertical leg or wing extending marginal flanges 12, which are of said plate 31. On the upper face of the secured to the inner faces of the side plates plate 34; is pivotally mounted the horlzon- 1 50 10; 'Secured to the inner faces of the side tally swingable fence 37, said fence having plates 10, and extending inwardly and upa clamping screw 38 engaged through an wardly through the opening 11, in the table arcuate slot 39, formed in the plate 34, contop, are the, brackets 13, on the upper ends centric with the pivot of the fence. Vertiof which is mounted a bearing 1a. Rotat oally disposed screws 40 are carried by the ably supported in this bearing 14 is a transupper portion of the fence to engage and verse shaft 15, and adjustably secured on hold the template or shoe 41, on the fence. I

On and against this shoe the piece of work to be coped is placed, with its end projecting beyond the end of the template to a distance sufficient to permit proper operation of the cutter 28 thereon, the said end of the template or shoe being cut to conform to the cut to be made in the work by the V cutter 28, and by reason of the fact that the work is held against the shoe, this cutout end will serve to prevent chipping of the wood, as the cutter passes through the adjacent edge thereof, and whereby a clean and smooth out will be made through and across the end of the piece of work. swinging the shoe around on its pivot to the desired angle, the cutter will form a coping cut, in the end face of the work, on the angle originally cut by the saw, so that this end of the work will properly fit an adjacent strip of a sash or door. The vertical leg 35 is formed with a pair of vertical slots 42, through which are engaged the clamping screws 43, which enter the vertical wing of the plate 31, for the purpose of securing the leg against displacement, after' having been adjusted to the desired height by the screw 36.

The mullion and muntin material is placed against the template 4:1, and the carriage moved longitudinally of the table, to pass the end of the work into engagement with the saw 21, and then, when this out has been made to the desired angle, the carriage is moved on toward the coping cutter, so that the cutter will cope the end of the work on the angle cut by the saw. This coping cut will be an inversion of the molding cut of the work, so that it will properly interfit with said molding cut of an adjacent molding strip, in a sash or door. The cut made by the coping cutter 28 is an undercut.

By removing the carriage from the track on the side member 10, the machine may be used as a two spindle shaper. The carria 'e may also be used on the other side of the machine, if desired.

Thus, after cutting ofi the end of a piece of work to the desired angle, with one of the saws 21, the piece of work is then placed against the template 41, and the carriage 31 moved longitudinally of the table, to pass the end of the work into engagement with the coping cutter 28, the said end of the work will be properly coped to fit an adjacent piece in a sash door construction.

hat is claimed is:

1. A coping machine including a frame havinga longitudinal groove in its upper face adjacent the side, an L-shaped member having a rib disposed for slidable movement in said groove, the side of the frame having a longitudinal groove, a roller on the L-shaped member movable in the last-named groove, a vertically adjustable member carried by the L-shaped member, and a work engaging fence angularly adjustable on the vertically adjustable member, and a cutter on the frame.

2. A machine of the class described including a support, a cutter on the support, a work carriage movable on the support transversely of the cutter, means for adjusting the work carriage angularly in a horizontal plane with respectto the cutter, a cut-olf saw on the support in the path of the work on said carriage, a work support on the carriage and angularly adjustable in a horizontal plane with respect to the saw, and a common driving means for the cutter and the saw.

3. A coping machine including a frame having a grooved upper face, the frame having a longitudinal horizontal groove in its side beneath the first groove, an inverted L-shaped member having a rib on the lower face of its horizontal portion slidably disposed in the first groove, a roller carried by the extremity of the vertical leg of the L-shaped member and running in the second groove, a bracket supported on the L-shaped member for vertical adjustment, a screw on said member engaged with the bracket, and a horizontal pivoted work supporting platform on the upper end of the vertically adjustable member.

In testimony whereof, I affix my signature.

JOHN G. STUTZ. 

